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fix(events): a listener's return ends that listener, not the dispatch

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Listeners are compiled into one @ev_<E> function and return branched to its exit, so every
listener declared after one that returned early - and every foreign listener - never heard
the event. The per-kind listener shape (return unless it is my kind) answered only the
first-declared kind. examples/events/answer.ludic holds it; seed regenerated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-23 17:42:18 +03:00
parent 45e14dbb99
commit f5ab5cf88a
8 changed files with 11240 additions and 11128 deletions
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13
selfhost/backend/game/emit_game.ludic
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@ -652,7 +652,18 @@ function emit_event_fns() -> void {
let base = nloc # listeners share the params but not each other's locals
var i = 0
while i < len(g_onlisten) {
if (g_onlisten[i].s == en) { nloc = base; g_term = false; emit_block(g_onlisten[i].a) }
if (g_onlisten[i].s == en) {
# a `return` ends this listener, not the dispatch: the next one and the foreign ones still run
nloc = base
g_term = false
let next = lbl("evnext")
g_ret_label = next
emit_block(g_onlisten[i].a)
g_ret_label = "ret"
if not g_term { emit(` br label %{next}\n`) }
emit(`{next}:\n`)
g_term = false
}
i += 1
}
# the open half: walk the foreign callback array in registration order